(C,D) is 5 units
(E,F) is 4 units
(A,B) is 6units
(G,H) is 3 units
Y is the very top, X is the other one, origin is labeled (0,0) A is the very first box going from left to right B is the highest box and C is the lowest
First find the LCD of the denominators then convert the fractions. Then you can subtract.
for example
2/7 - 1/4
LCD of 4 and 7 is 28 so we convert to fractions with denominator 28
1/4 = 1*7 / 4*7 = 7 /28
2/7 = 2*4 / 7*4 = 8/28
so 2/7 - 1/4 = 8 /28 / 7/28 = 1/28 answer
